Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs
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15.5.7.4. Trace Port Interface Unit (TPIU)
TPIU transports trace data off the chip. Trace data enters the TPIU on the ATB bus receiver port and leaves through the 32-bit wide TRACEDATA port. Trace data coming out of the TPIU are sent to the FPGA. The following table lists the signal descriptions between the TPIU and FPGA.
Signal | Description |
---|---|
h2f_tpiu_clk_ctl | Selects whether trace data is captured using the internal TPIU clock, which is the dbg_trace_clk signal from the clock manager; or an external clock provided as an input to the TPIU from the FPGA. 0 - use h2f_tpiu_clock_in 1 - use internal clock
Note: When the FPGA is powered down or not configured the TPIU uses the internal clock.
|
h2f_tpiu_data[32] | 32-bit trace data bus. Trace data changes on both edges of h2f_tpiu_clock. |
h2f_tpiu_clock_in | Clock from the FPGA used to capture trace data. |
h2f_tpiu_clock | Clock output from TPIU |